Comment This only looked at the most common adult-onset (Score 1) 114
It really irritates me how much the press can misinterpret scientific results. This is more a matter of classifying Type 2 as four new subtypes (since Type 1 is an autoimmune disease and "cluster 1" is the only cluster to contain autoimmune markers). If you're really interested in this, go check out the Medscape article about this (https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwww.medscape.com%2Fviewarticle%2F893305), which goes into a bit of detail and even calls them out for completely ignoring Type 3c (which though only recently classified, represents roughly 10% of those currently diagnosed as Type 2).
There are actually 8+ currently recognized forms if you consolidate them as much as possible:
* Type 1, which in turn breaks down into 1b (idiopatiic) and 1a (which has both rapid-onset and slow-onset aka LADA or Type 1.5)
* Type 2
* Type 3c (pancreatogenic)
* Gestational (both "normal" and autoimmune)
* MODY (actually 12 separate genetic disorders)
* Neonatal
* Mitochondrial (Diabetes and Blindness)
* Cystic Fibrosis Related Diabetes
And as others have pointed out, it's been proposed that a form of Alzheimers relating to insulin resistance within the brain be reclassified as "Type 3".